If you've ever opened your sunroof with your roof rack installed, you know it sounds like a dump truck full of blow dryers in a wind tunnel. For the past few years, roof rack manufacturers have been developing bars that cut down on drag and wind noise, and nobody's doing it better than Thule. The Aeroblade Edge Flush Mount load bar takes the wing shape to the next level with Thule's exclusive WindDiffuser textured surface technology, creates surface turbulence to silence wind noise. AeroBlade load bars are more than quiet, however. The bars' BoxBeam aluminum construction means these bars can withstand an incredible 800 pounds of force. They also incorporate SmartSlide technology, an integrated foot adjustment system that makes perfect positioning a snap. And, of course, AeroBlade's use Thule OneKey system, so one key can operate everything on your rack system.